| abstract |
The invention discloses a preparation method of isomaltooligosaccharide, which comprises the following steps: s1, preparation of starch: selecting a proper amount of good-variety wheat, removing impurities in the wheat, cleaning wheat grains, then wetting and modulating the wheat grains, controlling the moisture of the modulated wheat to be 15-19%, then conveying the wheat grains to a peeling device for separation of a skin layer, modulating the peeled wheat grains with water again to enable the total moisture in the wheat to reach 20% -25%, then performing embryo breaking treatment on the wheat grains, and screening the wheat grains after embryo breaking. According to the preparation method of isomaltooligosaccharide, the purity of trisaccharide is high and reaches more than 95%, the syrup is low in viscosity and high in sweetness, the secondary injection liquefaction temperature is increased, the full liquefaction of the feed liquid is guaranteed, the protein flocculation effect is improved, the next saccharification reaction is facilitated, and the good separation effect can be achieved by the aid of a small water-to-material ratio. |